root / hw / qdev-properties.c @ d8ed79ae
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#include "sysemu.h" |
---|---|
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#include "net.h" |
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#include "qdev.h" |
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|
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void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
|
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{ |
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void *ptr = dev;
|
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ptr += prop->offset; |
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return ptr;
|
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} |
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|
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/* --- 8bit integer --- */
|
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|
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static int parse_uint8(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
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const char *fmt; |
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|
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/* accept both hex and decimal */
|
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fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx8 : "%" PRIu8; |
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if (sscanf(str, fmt, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_uint8(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%" PRIu8, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_uint8 = { |
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.name = "uint8",
|
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.type = PROP_TYPE_UINT8, |
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.size = sizeof(uint8_t),
|
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.parse = parse_uint8, |
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.print = print_uint8, |
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}; |
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|
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/* --- 16bit integer --- */
|
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|
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static int parse_uint16(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint16_t *ptr = qdev_get_prop_ptr(dev, prop); |
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const char *fmt; |
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|
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/* accept both hex and decimal */
|
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fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx16 : "%" PRIu16; |
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if (sscanf(str, fmt, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint16_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%" PRIu16, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_uint16 = { |
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.name = "uint16",
|
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.type = PROP_TYPE_UINT16, |
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.size = sizeof(uint16_t),
|
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.parse = parse_uint16, |
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.print = print_uint16, |
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}; |
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|
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/* --- 32bit integer --- */
|
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|
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static int parse_uint32(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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const char *fmt; |
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|
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/* accept both hex and decimal */
|
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fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx32 : "%" PRIu32; |
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if (sscanf(str, fmt, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%" PRIu32, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_uint32 = { |
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.name = "uint32",
|
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.type = PROP_TYPE_UINT32, |
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.size = sizeof(uint32_t),
|
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.parse = parse_uint32, |
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.print = print_uint32, |
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}; |
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|
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static int parse_int32(DeviceState *dev, Property *prop, const char *str) |
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{ |
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int32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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|
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if (sscanf(str, "%" PRId32, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_int32(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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int32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%" PRId32, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_int32 = { |
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.name = "int32",
|
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.type = PROP_TYPE_INT32, |
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.size = sizeof(int32_t),
|
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.parse = parse_int32, |
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.print = print_int32, |
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}; |
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|
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/* --- 32bit hex value --- */
|
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|
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static int parse_hex32(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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|
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if (sscanf(str, "%" PRIx32, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "0x%" PRIx32, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_hex32 = { |
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.name = "hex32",
|
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.type = PROP_TYPE_UINT32, |
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.size = sizeof(uint32_t),
|
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.parse = parse_hex32, |
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.print = print_hex32, |
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}; |
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|
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/* --- 64bit integer --- */
|
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|
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static int parse_uint64(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
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const char *fmt; |
150 |
|
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/* accept both hex and decimal */
|
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fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx64 : "%" PRIu64; |
153 |
if (sscanf(str, fmt, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_uint64(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%" PRIu64, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_uint64 = { |
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.name = "uint64",
|
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.type = PROP_TYPE_UINT64, |
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.size = sizeof(uint64_t),
|
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.parse = parse_uint64, |
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.print = print_uint64, |
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}; |
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|
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/* --- 64bit hex value --- */
|
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|
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static int parse_hex64(DeviceState *dev, Property *prop, const char *str) |
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{ |
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uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
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|
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if (sscanf(str, "%" PRIx64, ptr) != 1) |
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return -1; |
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return 0; |
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} |
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|
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static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "0x%" PRIx64, *ptr); |
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} |
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|
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PropertyInfo qdev_prop_hex64 = { |
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.name = "hex64",
|
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.type = PROP_TYPE_UINT64, |
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.size = sizeof(uint64_t),
|
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.parse = parse_hex64, |
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.print = print_hex64, |
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}; |
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|
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/* --- string --- */
|
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|
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static int parse_string(DeviceState *dev, Property *prop, const char *str) |
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{ |
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char **ptr = qdev_get_prop_ptr(dev, prop);
|
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|
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if (*ptr)
|
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qemu_free(*ptr); |
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*ptr = qemu_strdup(str); |
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return 0; |
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} |
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|
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static int print_string(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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char **ptr = qdev_get_prop_ptr(dev, prop);
|
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if (!*ptr)
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return snprintf(dest, len, "<null>"); |
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return snprintf(dest, len, "\"%s\"", *ptr); |
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} |
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|
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PropertyInfo qdev_prop_string = { |
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.name = "string",
|
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.type = PROP_TYPE_STRING, |
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.size = sizeof(char*), |
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.parse = parse_string, |
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.print = print_string, |
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}; |
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|
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/* --- drive --- */
|
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|
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static int parse_drive(DeviceState *dev, Property *prop, const char *str) |
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{ |
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DriveInfo **ptr = qdev_get_prop_ptr(dev, prop); |
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|
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*ptr = drive_get_by_id(str); |
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if (*ptr == NULL) |
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return -1; |
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return 0; |
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} |
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|
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static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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DriveInfo **ptr = qdev_get_prop_ptr(dev, prop); |
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return snprintf(dest, len, "%s", (*ptr) ? (*ptr)->id : "<null>"); |
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} |
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|
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PropertyInfo qdev_prop_drive = { |
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.name = "drive",
|
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.type = PROP_TYPE_DRIVE, |
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.size = sizeof(DriveInfo*),
|
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.parse = parse_drive, |
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.print = print_drive, |
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}; |
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|
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/* --- character device --- */
|
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|
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static int parse_chr(DeviceState *dev, Property *prop, const char *str) |
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{ |
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop); |
256 |
|
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*ptr = qemu_chr_find(str); |
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if (*ptr == NULL) |
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return -1; |
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return 0; |
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} |
262 |
|
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static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop); |
266 |
|
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if (*ptr && (*ptr)->label) {
|
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return snprintf(dest, len, "%s", (*ptr)->label); |
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} else {
|
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return snprintf(dest, len, "<null>"); |
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} |
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} |
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|
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PropertyInfo qdev_prop_chr = { |
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.name = "chr",
|
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.type = PROP_TYPE_CHR, |
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.size = sizeof(CharDriverState*),
|
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.parse = parse_chr, |
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.print = print_chr, |
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}; |
281 |
|
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/* --- netdev device --- */
|
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|
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static int parse_netdev(DeviceState *dev, Property *prop, const char *str) |
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{ |
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VLANClientState **ptr = qdev_get_prop_ptr(dev, prop); |
287 |
|
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*ptr = qemu_find_netdev(str); |
289 |
if (*ptr == NULL) |
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return -1; |
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return 0; |
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} |
293 |
|
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static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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VLANClientState **ptr = qdev_get_prop_ptr(dev, prop); |
297 |
|
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if (*ptr && (*ptr)->name) {
|
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return snprintf(dest, len, "%s", (*ptr)->name); |
300 |
} else {
|
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return snprintf(dest, len, "<null>"); |
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} |
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} |
304 |
|
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PropertyInfo qdev_prop_netdev = { |
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.name = "netdev",
|
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.type = PROP_TYPE_NETDEV, |
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.size = sizeof(VLANClientState*),
|
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.parse = parse_netdev, |
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.print = print_netdev, |
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}; |
312 |
|
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/* --- vlan --- */
|
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|
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static int parse_vlan(DeviceState *dev, Property *prop, const char *str) |
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{ |
317 |
VLANState **ptr = qdev_get_prop_ptr(dev, prop); |
318 |
int id;
|
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|
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if (sscanf(str, "%d", &id) != 1) |
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return -1; |
322 |
*ptr = qemu_find_vlan(id, 1);
|
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if (*ptr == NULL) |
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return -1; |
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return 0; |
326 |
} |
327 |
|
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static int print_vlan(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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VLANState **ptr = qdev_get_prop_ptr(dev, prop); |
331 |
|
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if (*ptr) {
|
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return snprintf(dest, len, "%d", (*ptr)->id); |
334 |
} else {
|
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return snprintf(dest, len, "<null>"); |
336 |
} |
337 |
} |
338 |
|
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PropertyInfo qdev_prop_vlan = { |
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.name = "vlan",
|
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.type = PROP_TYPE_VLAN, |
342 |
.size = sizeof(VLANClientState*),
|
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.parse = parse_vlan, |
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.print = print_vlan, |
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}; |
346 |
|
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/* --- pointer --- */
|
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|
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static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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void **ptr = qdev_get_prop_ptr(dev, prop);
|
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return snprintf(dest, len, "<%p>", *ptr); |
353 |
} |
354 |
|
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PropertyInfo qdev_prop_ptr = { |
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.name = "ptr",
|
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.type = PROP_TYPE_PTR, |
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.size = sizeof(void*), |
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.print = print_ptr, |
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}; |
361 |
|
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/* --- mac address --- */
|
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|
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/*
|
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* accepted syntax versions:
|
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* 01:02:03:04:05:06
|
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* 01-02-03-04-05-06
|
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*/
|
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static int parse_mac(DeviceState *dev, Property *prop, const char *str) |
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{ |
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MACAddr *mac = qdev_get_prop_ptr(dev, prop); |
372 |
int i, pos;
|
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char *p;
|
374 |
|
375 |
for (i = 0, pos = 0; i < 6; i++, pos += 3) { |
376 |
if (!qemu_isxdigit(str[pos]))
|
377 |
return -1; |
378 |
if (!qemu_isxdigit(str[pos+1])) |
379 |
return -1; |
380 |
if (i == 5) { |
381 |
if (str[pos+2] != '\0') |
382 |
return -1; |
383 |
} else {
|
384 |
if (str[pos+2] != ':' && str[pos+2] != '-') |
385 |
return -1; |
386 |
} |
387 |
mac->a[i] = strtol(str+pos, &p, 16);
|
388 |
} |
389 |
return 0; |
390 |
} |
391 |
|
392 |
static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len) |
393 |
{ |
394 |
MACAddr *mac = qdev_get_prop_ptr(dev, prop); |
395 |
|
396 |
return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x", |
397 |
mac->a[0], mac->a[1], mac->a[2], |
398 |
mac->a[3], mac->a[4], mac->a[5]); |
399 |
} |
400 |
|
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PropertyInfo qdev_prop_macaddr = { |
402 |
.name = "macaddr",
|
403 |
.type = PROP_TYPE_MACADDR, |
404 |
.size = sizeof(MACAddr),
|
405 |
.parse = parse_mac, |
406 |
.print = print_mac, |
407 |
}; |
408 |
|
409 |
/* --- pci address --- */
|
410 |
|
411 |
/*
|
412 |
* bus-local address, i.e. "$slot" or "$slot.$fn"
|
413 |
*/
|
414 |
static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str) |
415 |
{ |
416 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
417 |
unsigned int slot, fn, n; |
418 |
|
419 |
if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { |
420 |
fn = 0;
|
421 |
if (sscanf(str, "%x%n", &slot, &n) != 1) { |
422 |
return -1; |
423 |
} |
424 |
} |
425 |
if (str[n] != '\0') |
426 |
return -1; |
427 |
if (fn > 7) |
428 |
return -1; |
429 |
*ptr = slot << 3 | fn;
|
430 |
return 0; |
431 |
} |
432 |
|
433 |
static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len) |
434 |
{ |
435 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
436 |
|
437 |
if (*ptr == -1) { |
438 |
return snprintf(dest, len, "<unset>"); |
439 |
} else {
|
440 |
return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); |
441 |
} |
442 |
} |
443 |
|
444 |
PropertyInfo qdev_prop_pci_devfn = { |
445 |
.name = "pci-devfn",
|
446 |
.type = PROP_TYPE_UINT32, |
447 |
.size = sizeof(uint32_t),
|
448 |
.parse = parse_pci_devfn, |
449 |
.print = print_pci_devfn, |
450 |
}; |
451 |
|
452 |
/* --- public helpers --- */
|
453 |
|
454 |
static Property *qdev_prop_walk(Property *props, const char *name) |
455 |
{ |
456 |
if (!props)
|
457 |
return NULL; |
458 |
while (props->name) {
|
459 |
if (strcmp(props->name, name) == 0) |
460 |
return props;
|
461 |
props++; |
462 |
} |
463 |
return NULL; |
464 |
} |
465 |
|
466 |
static Property *qdev_prop_find(DeviceState *dev, const char *name) |
467 |
{ |
468 |
Property *prop; |
469 |
|
470 |
/* device properties */
|
471 |
prop = qdev_prop_walk(dev->info->props, name); |
472 |
if (prop)
|
473 |
return prop;
|
474 |
|
475 |
/* bus properties */
|
476 |
prop = qdev_prop_walk(dev->parent_bus->info->props, name); |
477 |
if (prop)
|
478 |
return prop;
|
479 |
|
480 |
return NULL; |
481 |
} |
482 |
|
483 |
int qdev_prop_exists(DeviceState *dev, const char *name) |
484 |
{ |
485 |
return qdev_prop_find(dev, name) ? true : false; |
486 |
} |
487 |
|
488 |
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value) |
489 |
{ |
490 |
Property *prop; |
491 |
|
492 |
prop = qdev_prop_find(dev, name); |
493 |
if (!prop) {
|
494 |
fprintf(stderr, "property \"%s.%s\" not found\n",
|
495 |
dev->info->name, name); |
496 |
return -1; |
497 |
} |
498 |
if (!prop->info->parse) {
|
499 |
fprintf(stderr, "property \"%s.%s\" has no parser\n",
|
500 |
dev->info->name, name); |
501 |
return -1; |
502 |
} |
503 |
return prop->info->parse(dev, prop, value);
|
504 |
} |
505 |
|
506 |
void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type) |
507 |
{ |
508 |
Property *prop; |
509 |
void *dst;
|
510 |
|
511 |
prop = qdev_prop_find(dev, name); |
512 |
if (!prop) {
|
513 |
fprintf(stderr, "%s: property \"%s.%s\" not found\n",
|
514 |
__FUNCTION__, dev->info->name, name); |
515 |
abort(); |
516 |
} |
517 |
if (prop->info->type != type) {
|
518 |
fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
|
519 |
__FUNCTION__, dev->info->name, name); |
520 |
abort(); |
521 |
} |
522 |
dst = qdev_get_prop_ptr(dev, prop); |
523 |
memcpy(dst, src, prop->info->size); |
524 |
} |
525 |
|
526 |
void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value) |
527 |
{ |
528 |
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8); |
529 |
} |
530 |
|
531 |
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value) |
532 |
{ |
533 |
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16); |
534 |
} |
535 |
|
536 |
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value) |
537 |
{ |
538 |
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32); |
539 |
} |
540 |
|
541 |
void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value) |
542 |
{ |
543 |
qdev_prop_set(dev, name, &value, PROP_TYPE_INT32); |
544 |
} |
545 |
|
546 |
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value) |
547 |
{ |
548 |
qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64); |
549 |
} |
550 |
|
551 |
void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value) |
552 |
{ |
553 |
qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE); |
554 |
} |
555 |
|
556 |
void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value) |
557 |
{ |
558 |
qdev_prop_set(dev, name, &value, PROP_TYPE_CHR); |
559 |
} |
560 |
|
561 |
void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value) |
562 |
{ |
563 |
qdev_prop_set(dev, name, &value, PROP_TYPE_NETDEV); |
564 |
} |
565 |
|
566 |
void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value) |
567 |
{ |
568 |
qdev_prop_set(dev, name, &value, PROP_TYPE_VLAN); |
569 |
} |
570 |
|
571 |
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value) |
572 |
{ |
573 |
qdev_prop_set(dev, name, value, PROP_TYPE_MACADDR); |
574 |
} |
575 |
|
576 |
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value) |
577 |
{ |
578 |
qdev_prop_set(dev, name, &value, PROP_TYPE_PTR); |
579 |
} |
580 |
|
581 |
void qdev_prop_set_defaults(DeviceState *dev, Property *props)
|
582 |
{ |
583 |
char *dst;
|
584 |
|
585 |
if (!props)
|
586 |
return;
|
587 |
while (props->name) {
|
588 |
if (props->defval) {
|
589 |
dst = qdev_get_prop_ptr(dev, props); |
590 |
memcpy(dst, props->defval, props->info->size); |
591 |
} |
592 |
props++; |
593 |
} |
594 |
} |
595 |
|
596 |
static CompatProperty *compat_props;
|
597 |
|
598 |
void qdev_prop_register_compat(CompatProperty *props)
|
599 |
{ |
600 |
compat_props = props; |
601 |
} |
602 |
|
603 |
void qdev_prop_set_compat(DeviceState *dev)
|
604 |
{ |
605 |
CompatProperty *prop; |
606 |
|
607 |
if (!compat_props) {
|
608 |
return;
|
609 |
} |
610 |
for (prop = compat_props; prop->driver != NULL; prop++) { |
611 |
if (strcmp(dev->info->name, prop->driver) != 0) { |
612 |
continue;
|
613 |
} |
614 |
if (qdev_prop_parse(dev, prop->property, prop->value) != 0) { |
615 |
abort(); |
616 |
} |
617 |
} |
618 |
} |